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    <meta charset="utf-8"/>
    <title></title>
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    #p1 {letter-spacing:0px;}
    #p2 {letter-spacing:3px;}
    #p3 {letter-spacing:5px;}
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    <P id="p1">Rome was't built in a day.罗马不是一天建成的。</p ><hr/>
    <P id="p2">Rome was't built in a day.罗马不是一天建成的。</p ><hr/>
    <P id="p3">Rome was't built in a day.罗马不是一天建成的。</p ><hr/>
</body>
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